This is a custom built SP-2B preamp in a SP-1 case (built by John Hillig at Musical Design). New in 2011. It uses two 6922 tubes. John built this with an upgraded outboard power supply.
Sounds great. It has a "direct input" set of rca's which bypass the input selector switch.
$525 obo plus shipping (from 60435) and 3% ppal.
